According to Dr. M. Bodon and Prof. Dr. F. Giusti in Kokshoorn and Gittenberger (2010), this Italian endemic species is known from the extreme southeastern part of the province of La Spezia in Liguria, many localities in Toscana, and very few places in Lazio, as far south as the province of Latina.

It is a potential threat to this species if the rocks are destroyed by quarrying, by road construction or by other reasons. However the total destruction of the whole habitat is not very likely, therefore this threat is mostly „hypothetical”.